Build me a autocheckout bot

I need a chrome extension auto checkout bot for [login to view URL] I need this bot to have a super nice GUI. I also need this bot to be able to run multiple tasks at the same time while using different information to buy each product. It should be able to use proxies and be able to find different keywords. It should also have a release timer which will make the bot automatically start at a certain time. There should also be a auto-refresh which you can set to as long as you would like and a checkout delay meaning how long till the bot clicks comfirm order.